Index Catalog // ScholarsArchive@OSU

Winter supplementation and delayed weaning of an autumn calving beef herd under western Oregon conditions

Creator:: Buehner, Heidi Renata
Abstract:: Two management systems were evaluated in terms of the effects on cow condition score and body weight changes and calf growth rates. The management systems evaluated were winter supplementation of energy, winter creep feeding and delayed weaning. The calves used in this study were born in September and October of...
Resource Type:: Masters Thesis
Full Text:: members, Drs. D. W. Weber, R. E. Rowe, M. L. Hellickson, J. P. Maas, and P. C. Wagner are thanked for

Computer simulation of beef cattle production systems in the Llanos of Columbia

Creator:: Levine, Joel Martin
Abstract:: A simulation model capable of execution on a programmable calculator was developed to study voluntary intake, liveweight change, and fertility of grade Zebu cows in the Llanos of Colombia. Organic nitrogen in the diet and meta bolic weight were used to predict intake; age, liveweight, and energy concentration were the...
Resource Type:: Dissertation
Full Text:: State University: Drs. A. Ralston, A. G. Nelson, K. Rowe, J. Renden, D. Thomas, and J. E. Oldfield for

Nutritional influences affecting senecio toxicity in laboratory animals

Creator:: Buckmaster, Gary Wayne
Abstract:: The objective of this research project was to evaluate the toxicity of local pyrrolizidine alkaloid containing plants and to examine the influence of dietary protein, with particular reference to the amino acid cysteine, upon this toxicity. Senecio vulgaris (common groundsel) was shown to be more toxic than Senecio jacobaea (tansy...
Resource Type:: Masters Thesis
Full Text:: . 1960; Campbell, 1956), turkeys (Bierer et al. 1960; Allen et al. 1963), quail and doves (Thomas, 1934

Response of feed lot heifers to certain exogenous hormones

Creator:: Caster, John Eugene
Abstract:: Some effects of hormone treatment on feedlot heifers were studied. The treatments were 15 mg diethylstilbestrol (DES) implant, Synovex H implant, .25 mg oral melengestrol acetate (MGA) per head per day, and .40 mg oral MGA per head per day. One hundred heifers, 20 to each treatment, were used. All...
Resource Type:: Masters Thesis
Full Text:: Eugene Caster q ACKNOWLEDGMENTS I wish to extend sincere thanks to Dr. Allen T. Ralston for his

Mechanism of action of ST-669 in Chlamydia spp.

Creator:: Scharzenberger, Stormy Marie
Abstract:: Our laboratory group is studying the molecular target of a novel, broad-spectrum antiviral compound known as ST-669. This compound has activity against a variety of different viruses and also obligate intracellular bacteria in the genera Coxiella and Chlamydia. The goal of this thesis project was to help elucidate the mechanism...
Resource Type:: Honors College Thesis
Full Text:: . Lovejoy, S.M. Amberg, D.E. Hruby, S.R. Tyavanagimatt, R.D. Allen III, and D. Dai, “SAR analysis of a

Steroid transformations in the pregnant mare: the effects of exogenous progestins and trilostane on the progestin milieu- in vivo and in vitro

Creator:: Schutzer, William E.
Resource Type:: Masters Thesis
Full Text:: 200 d, eCG is not detectable (Day, 1940; Allen, 1969; Ginther, 1992). During early pregnancy, LH

The effect of certain production factors and rates of gain on carcass characteristics of beef steers

Creator:: Thompson, Kenneth Earl
Abstract:: The purpose of the present study was to determine the association of initial weight, average daily gain, days on feed, percent total digestible nutrients (TDN) and percent digestible protein in the ration with USDA carcass grade, marbling score, conformation score, back fat thickness and area of longissimus dorsi of beef...
Resource Type:: Masters Thesis
Full Text:: . Taylor Ralston, A. T., W. H. Kennick, T. P. Davidson and K. E. Rowe Ralston, A. T., D. C. Church, T. P

Transforming shrimp and crab waste into dairy heifer feed

Creator:: Evers, Dale J.
Abstract:: The goal of these experiments was to ensile combinations of shrimp or crab waste with perennial ryegrass straw and analyze it for silage quality and ruminal degradability. The rapid deterioration of seafood wastes required initial preservation prior to ensiling to minimize odor production and protein breakdown. Eight experiments were conducted...
Resource Type:: Masters Thesis
Full Text:: extended to Mike Gamroth, Dr. Penner, and Dr. Rowe for their advice and guidance throughout the design

Nongenomic action of progesterone inhibits oxytocin signaling through the ovine oxytocin receptor

Creator:: Bishop, Cecily V.
Abstract:: Experiments were conducted to characterize the nongenomic effects of progesterone (P4) on binding of oxytocin (OT) to the ovine oxytocin receptor (OTR) and signal transduction. The dose-response relationship of P4 to OT binding to the OTR in endometrium was examined. Progesterone interfered with the binding of OT to the OTR...
Resource Type:: Dissertation
Full Text:: maintained and implantation to occur (Allen and Corner, 1929). Progesterone was crystallized from the

Involvement of inorganic and organic components in the laxative effect of cane final molasses

Creator:: Campbell, Michael Dennis
Abstract:: The objective of this study was to investigate the effect of inorganic and organic components of molasses on the laxative problem encountered when molasses makes up a large portion of livestock rations. In a series of four trials 280 male Long Evans rats weighing approximately 50 grams each were placed...
Resource Type:: Masters Thesis
Full Text:: Rowe for his assistance with the statistical analysis. The author also gratefully acknowledges the

ScholarsArchive@OSU

Winter supplementation and delayed weaning of an autumn calving beef herd under western Oregon conditions

Computer simulation of beef cattle production systems in the Llanos of Columbia

Nutritional influences affecting senecio toxicity in laboratory animals

Response of feed lot heifers to certain exogenous hormones

Mechanism of action of ST-669 in Chlamydia spp.

Steroid transformations in the pregnant mare: the effects of exogenous progestins and trilostane on the progestin milieu- in vivo and in vitro

The effect of certain production factors and rates of gain on carcass characteristics of beef steers

Transforming shrimp and crab waste into dairy heifer feed

Nongenomic action of progesterone inhibits oxytocin signaling through the ovine oxytocin receptor

Involvement of inorganic and organic components in the laxative effect of cane final molasses

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